Goldfarb, A. H., Hatfield, B. D., Armstrong, D., & Potts, J. (1990). Plasma beta-endorphin concentration: Response to intensity and duration of exercise. Medicine and science in sports and exercise, 22(2), S. 241-244.
Chicago ZitierstilGoldfarb, Allan H., Bradley D. Hatfield, David Armstrong, and Jeff Potts. "Plasma Beta-endorphin Concentration: Response to Intensity and Duration of Exercise." Medicine and Science in Sports and Exercise 22, no. 2 (1990): S. 241-244.
MLA ZitierstilGoldfarb, Allan H., Bradley D. Hatfield, David Armstrong, and Jeff Potts. "Plasma Beta-endorphin Concentration: Response to Intensity and Duration of Exercise." Medicine and Science in Sports and Exercise 22.2 (1990): S. 241-244.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.